53433429 has 32 divisors (see below), whose sum is σ = 84664320. Its totient is φ = 29332800.

The previous prime is 53433427. The next prime is 53433433. The reversal of 53433429 is 92433435.

It is not a de Polignac number, because 53433429 - 2¹ = 53433427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53433429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53433427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137167 + ... + 137555.

It is an arithmetic number, because the mean of its divisors is an integer number (2645760).

Almost surely, 2^53433429 is an apocalyptic number.

It is an amenable number.

53433429 is a deficient number, since it is larger than the sum of its proper divisors (31230891).

53433429 is a wasteful number, since it uses less digits than its factorization.

53433429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641.

The product of its digits is 38880, while the sum is 33.

The square root of 53433429 is about 7309.8173027785. The cubic root of 53433429 is about 376.6497484591.

The spelling of 53433429 in words is "fifty-three million, four hundred thirty-three thousand, four hundred twenty-nine".